Automatic telephone message receiver and recorder



Sept. 11, 1934. M. KEISER 1,973,081

AUTOMATIC TELEPHONE MESSAGE RECEIVER AND RECORDER Filed Sept. 20, 1932 8 Sheets?Sheet 1 M. KEISER Sept. 11, 1934.

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AUTOMATIC TELEPHONE MESSAGE RECEIVER AND RECORDER Filed Sept. 20, 1932 8 Sheets-Sheet 8 mm hkw Nu w N 0 O H W C my E y Q \\\R -\M\\\ Patented Sept. 11, 1934 7 aurom'rro- 'rnr'nrnomi MESSAGE aroma AND ancoapaa Morris Keiser, Brooklyn, N. Y., assignor, by mesne assignments, to Televoice Corporation of America, New York, N. Y., a corporation of New York Application September 20, 1932, Serial No. 834,025

8 Claims.

This invention relates to sound recording and reproducing apparatus and has special reference to an automatic telephone message receiver and recorder. Devices have been invented for the purpose of automatically receiving and recording messages in connection with a subscriber's telephone instrument but hitherto such devices have necessitated conductive connection between the wiring of the telephone system and the apparatus for such reception and recording. For various reasons, not necessary here to discuss, such direct connection to the telephone circuits is objectionable and the operating companies generally refuse to allow the use of such apparatus.

One important object of the present invention is to provide a novel arrangement of apparatus for this purpose wherein there is no electrical connection, either conductively or inductively, between the telephone circuits and the circuits involved inthe invention so that the device may be installed without in any way interfering with the present telephone installations.

A second important object of the invention is to provide a novel apparatus for this purpose wherein means controlled by the ringing of the telephone call bell will initiate operation of the message receiving apparatus.

A third important object of the invention is to provide a novel arrangement of such apparatus whereby the telephone instrument remains in normal condition with the receiver hook depressed or (in so called French type telephones) with the mouth and ear piece on the stand except during the reception of the massage, the apparatus being arranged to automatically lift the hook or mouth and ear piece immediately after initiation of operation and to allow the hook to drop or the mouth and ear piece to be seated 40 upon conclusion of the operation.

A fourth important object of the invention is to provide an improved recording and reproducing instrument for use in such apparatus.

A fifth important object of the invention is to 45 provide an improved answering means for use in such apparatus.

A sixth important object of the invention is to provide a novel arrangement of amplifying means in such apparatus.

A seventh important object of the invention is to provide a novel arrangement of electrical circuits and controls for use in connection with an apparatus of this character.

With the above and other objects in view, as will 55 be presently apparent, the invention consists in general of certain novel combinations of elements and arrangements of parts hereinafter fully described, illustrated in the accompanying drawings and specifically claimed.

In the accompanying drawings like characters of reference indicate like parts in the several views, and:-

Figure 1 is a general assembly view showing the relative arrangement of the various parts of the invention and their relation to the usual tele- 66 phone instrument and call box.

Figure 2 is an enlarged vertical longitudinal section on the line 2-2 of Figure 1.

Figure 3 is a section on the line 3-3 of Figure 2.

Figure 4 is a still more enlarged section on the line 4-4 of Figure 2.

Figure 5 is a section on line 5-5 of Figure 2.

Figure 6 is a section on the line 6-6 of Figure 2.

Figure 7 is a section on the line 7-7 of Figure 6.

Figure 8 is an enlarged detail of a certain sound actuated circuit breaker used herein.

Figure 9 is an enlarged section on the line 9-9 of Figure 2.

Figure 10 is a section on the line 10-10 of Figure '7.

Figure 11 is a section on the line 11-11 of Figure 4.

Figure 12 is a detail side view of a portion of a certain clutch throwing arm used herein.

Figure 13 is a perspective view of one end of a5 reproducer arm used herein.

Figure 14 is a view showing the arrangement of the guide for the part shown in Figure 13.

Figure 15 is an enlarged section on the line 15-15 of Figure 1.

Figure 16 is a section on the line 16-16 of Figure 15 but to a smaller scale.

Figure 17 is a plan view of a position of a telephone stand shown in section in Figure 15.

Figure 18 is a wiring diagram showing the various circuit connections and electrical devices used herein.

Figure 19 is a section on the line 19-19 of Figure 2.

Figure 20 is a view in elevation of a position of the right hand end of Figure 2 showing a certain latch and hinge member used herein.

Referring now to Figure 1 of the drawings it will be seen that there is disclosed an ordinary circuit breaker C, a telephone stand or housing D, an amplifier E, a sound recording and reproducing instrument F and suitable conductive cables G connecting these parts.

Considering first of all the circuit breaker C which is best shown in Figure 8. In this device there is provided a stand or bracket 10 supporting a ring 11 wherein is stretched a diaphragm 12 carrying a contact 13 against which normally rests a pendulum contact 14 hinged at 15 to the ring in such manner that these contacts, when not in engagement, are insulated from each other. This device is located adjacent the call box and upon the ringing of the bell the pendulum contact is swung by the action of the compression portion of the sound wave, away from the contact 13, to a distance greater than the semi-amplitude of vibration of the diaphragm. Naturally the oscillation period of the pendulum is greater than the vibration period of the diaphragm so that, after contact is broken in this manner, the pendulum swings back to normal contacting position after suincient time of separation to ensure time enough between contacts for the operation of the devices connected in series to these contacts 13 and 14.

From Figure 18 it will be seen that a battery 16 is connected to the contact 13 by a conductor 17. The contact 14 is connected by a conductor 18 with an armature 19 forming a movable contact engageable with a fixed contact 20 connected to the magnet 21 which actuates the armature by a conductor 22. A conductor 23 connects the magnet 21 in series with a second magnet, 24 which is in turn connected to the remaining terminal of the battery by a conductor 25. The magnet 24 is likewise provided with an armature contact 26 held away from a fixed contact 27 as long as the magnet 24 is energized. Springs 27' urge the contact 19 away from the contact 20 and the contact 26 towards the contact 2'1. A conductor 28 connects the contact 27 with the conductor 25 and thus to the battery 16. A conductor 29 connects the contact 26 to the magnets 30 of a relay having an armature contact 31 and a fixed contact 32 and these magnets are connected by a conductor 33 to the conductor 1'7 and thus to the battery 16.

Under these conditions current normally fiows from the battery 16 through conductor 17, contact 13, contact 14, conductor 18, contact 19, contact 20, conductor 22, magnet 21, conductor 23, magnet 24 and conductor 25 back to the battery. Thus the magnets are normally energized and contacts 19 and 20 are closed while contacts 26 and 27 are open. As soon, however, as contact 14 swings away from contact 13 this circuit will be broken and the magnets 21 and 24 will be de-energized so that contacts 19 and 20 willopen and contacts 27 and 28 will close. Thereupon a circuit will be established from the battery 16 through conductor 17, conductor 33, magnets 30, conductor 29, contact 26, contact 27, condutor 28 and conductor 25 back to the battery. Contacts 31 and 32 will now close. Obviously the magnets cannot be re-energized by the engagement of contact 14 with contact 13 since the circuit through these contacts will be broken,

that the line '34 is connected to the contact 32. A conductor 38 leads from the contact 31 to one teminal of a solenoid winding 37 leaving its ranged in the form shown to lift the instrument 40 of the telephone B off its stand. (See Fig. 16).

Also a conductor 41 leads from the conductor 36 to one brush of a motor 42 while its other brush is connected by a conductor 43 through a safety switch 44 with the line 35. The motor and solenoid are thus connected in parallel to the lines through the relay contacts 31 and 32 upon energization of the magnets 30 as previously described.

Referring now to Figures 15 to 18. A housing 45 is provided for the telephone B and in this housing is a stand or support 46 having a diametrically extending recess 47 closed at its top by a bar 48 hinged at one end and having its other end urged to raised position above the top of the stand by a spring 49. On the bottom of the recess are insulatedly mounted a fixed contact 50 and a spring contact 51 which engages the contact 50 when the bar 48 is raised but is disengaged therefrom when the bar is pushed down as by the weight of the telephone as shown in Figure 15. The contact 50 is connected to the conductor 22 by a conductor 52 and a conductor 53 connects the contact 51 with the conductor 33. Thus, by lifting the telephone out of the casing contacts 51 and 50 will close and a circuit will be established from the battery 16, through conductor 17, conductor 33, conductor 53, contact 51, contact 50, conductor 52, conductor 22, magnet 21, conductor 23, magnet 24 and conductor 25 back to the battery. This circuit will be permanent so long as the telephone is off its stand and will maintain the magnets 21 and 24 energized no matter whether the circuit between contacts 13 and 14 be broken or not. Thus, by lifting the telephone the circuit through the contacts 13 and 14 is established and the device is used without closing the motor circuit which, as will be presently understood, eliminates automatic recording and answering of messages. Other means also automatically close the circuit through magnets 21 and 24 as will now be described. The amplifier E may be oi. any standard construction the specific arrangement of which is not deemed necessary here to show as such specific arrangementforms no part of the present invention. However, power must be provided for the amplifier and for this purpose input or power leads 54 and 55 are connected to the amplifier and to the respective conductors 41 and 43 so that power is supplied to the amplifier upon closing of the contacts 31 and 32.

A magnet 56 is connected to the amplifier by the conductors 57 and 58 and this magnet is provided with an armature contact 59 urged away from the magnet by a spring 60 and restrained to move but slowly under the influence of the spring by a dash-pot 61, a pivoted swinging arm 62 lies in the path of the armature 59 and carries a contact 63 so insulated that as the armature moves toward the magnet it simply moves past this contact without engaging the same while, on its opposite movement, the armature contacts with the contact 63. The armature contact 59 and contact 63 are bridged across the conductors 52 and 53 by branch conductors 64 and 65. At 66 is a receiving microphone which is connected to the amplifier and controls the output through the conductors 57 and 58 to the magnet 56 in such manner that the magnet 56 will remain energized so long as the microphone is under the influence of sound waves. As shown in Figure this microphone is mounted in a tube 67 in the casing so as to receive sound from the instrument 40. Thus, as long as a message is being received the magnet 56 will be energized and the armature contact lie close thereto. When the message ceases or momentarily stops the armature 59 starts to move slowly away from the magnet 56 and unless sound affects the microphone before the armature engages the contact 63 a circuit will be closed through magnets 21 and 24 substantially as previously described with relation to the contacts and 51. A test switch 68 is bridged across the conductors 52 and 53 for manual testing of the holding circuit or circuit through the magnets 21 and 24. A

- manual switch 69 is bridged from the lead 34 to plifier E and is located in a tube 71 in the casing 45, this tube receiving the mouth piece of the instrument, 40. A lamp 72 is bridged between the lead 35 and conductor 36 so as to afford ocular evidence of the closing of the power or operating circuit.

The recording and speaking means will now be considered. The instrument F has its lower part formed as a casing 73 wherein is mounted the motor 42 which is provided with a shaft 74 which fits in a socketed end 75 on a jack shaft 76 mounted in suitable bearings in the casing. Freely revoluble on the shaft is a pulley 77 having a clutch face 78. A shipper arm 80'engages the clutch member 79 and a spring 81 urges this arm to such position as to cause the clutch member to engage the face '78. A shaft 82 is journalled in the casing parallel to the motor shaft and on this shaft .82 is fixed a mandrel 83 carrying a rec- 0rd 84. The record 84 is held on the mandrel by a live center 85 mounted in a standard 86 having its lower end fitting in a T-groove 87 and held in adjusted position therein by a set screw 88. Mounted parallel to the shaft 82 is a guide rod 89 whereon is slidably and tiltably mounted the middle portion of a reproducer arm 90 carrying at one end a reproducer 91 adapted to have its stylus engage the record 84. When the device is at rest the reproducer is held at the beginning of the message on the record 84 by a spring 92.

A feed screw 93 is normally engaged by a halfnut 94 carried on an arm 95 radiating from the pivoted portion of the arm 90. A roller 96 is carried by the remaining end of the arm 90 and engages in a groove or slot 97 formed in a block 98 supported for adjustment vertically by screws 99 in a. channel member 100. The groove or slot 97 forms an endless path for the roller 96, this path having parallel and straight upper and lower portions connected at their ends by semi-circular portions. As shown in Figure 14 a spring guide 101 is carried by the block 98 and is positioned to force the roller down at one semi-circular portion-of the path, the roller moving in the direction of the arrow in this figure. 'As will be plain from Figure 5 when the roller is in the upper portion of its path the reproducer stylus engages the record 84 and the half-nut 94 engages the screw 93. On the contrary, when the roller is in the lower portion of slot 97 the reproducer is lifted lifted off at the end of this travel and restored initial position by the spring 92.

A trip lever 102 is pivoted intermediate its ends to a bracket 103 and is so positioned that an adjusting or stop screw 104 carried by one end of the lever will be engaged by the reproducer 91 at the end of its movement of reproduction. A link 105 connects the other end of this lever with shipper 80. Thus, upon engagement of the reproducer with the stop screw 104 the clutch member is disengaged from the pulley and the mandrel and feed screw cease to rotate during the return movement of the reproducer. The pulley 77 is connected by a belt 106 with a pulley 107 on the shaft 82 so that the motor is opera tively connected to this shaft. The record cylinder has impressed thereon a message of instruction to the person calling the subscriber using this apparatus. As before explained, when the bell rings the operating circuit is closed and the motor starts. At the same time the talking circuit for the telephone is established by the lifting of the instrument 40. The reproducer 91 is a microphone reproducer and is connected to the speaker 70 through the amplifier E so that the message on the record is delivered to the telephone instrument 40. The message on the record is to the effect that the person called is out but any message desired to be left will be received automatically and recorded. The person calling answers by speaking in the usual manner into his telephone instrument which, as previously described, causes energization of magnet 56.

The message received is recorded by the mechanism now to be described. At one end of the casing 73 is a housing 108 which projects above the casing. The shaft 76 extends into this casing and has mounted thereon a pair of freely revoluble pulleys 109 between wh'ch a clutch member 110 is splined on the shaft 76 so that one or the other of these pulleys may be clutched to the shaft at will. A shipper 111 controls the position of the clutch member and projects through the front of the housing for manual operation. A shaft 112 is journalled in the upper part of the housing parallel to the shaft 76 and fixed on the shaft 112 are belt pulleys 113 connected by belts 114 with the respective pulley 109. As can be seen from Figure 7 the driving ratio of one pulley 109 and its connected pulley 113 is d'fierent from that of the other pair of pulleys. The device may thus be selectively set for either of two driving ratios. The shaft 112 carries a mandrel 115 which extends over the top of the casing 73 and on this mandrel is the usual composition record cylinder 116. A bracket 117 hingedly carried by the casing 73 is arranged at the free end of the mandrel and carries a live center 118 which supports this free end and holds the cylinder 116 from accidental displacement. A clip 119 serves to latch the bracket in normal position but may be drawn up to permit movement of the bracket on its hinge. A guide bar 120 has mounted thereon an arm 121 carrying a reproducer 122 of the ordinary business phonograph type having both recording and reproducing stylus shiftable into engagement with the record by means of a lever 123. Extending parallel to the guide rod 120' is a feed screw 124 which is connected to the shaft 112 by gearing 125. The lower end of the arm 121 has a tubular boss 128 which slides on the guide screw. A half-nut-127 is pivoted to the arm 121 and normally engages the screw 124 to cause the reproducer to travel along the record in operation. A lever 128 and link 129 serve to permit manual engagement-and disengagement of the half-nut and screw. The reproducer 122 is, for reception purposes, connected to a speaker compartment 130 in the casing by a tube 131 and in this compartment is a speaker unit 132 (see Figures 4 and/18) actuated by the sounds entering the microphone 66 from the instrument 40. For reproduction purposes the tube 131 may be replaced by an ear tube 133 as shown in Figure 1. The operation of this part 01' the apparatus is identical with the operation of thewell known business phonograph except that the impressed sounds are produced by the speaker unit instead of by direct vocalization.

' Since the operation of each part has been speciflcally described it is not thought necessary here to repeat such specific. descriptions. It may be noted, however, that ringing of the call bell opens the sound controlled circuit, the opening of this circuit effects closing of the operating circuit, starts the motor and energizes the lifting solenoid and amplifier. The lifting solenoid acts to establish the telephone talking circuit. The answering record 84 now acts to answer the call and the message is recelved and recorded on the record 116. Upon completion of the message the contacts 59 and 63 act to reestablish the sound controlled circuit and open the operating circuit.

There has thus been provided a simple and efficient device of the kind described and for the purpose specified.

It is obvious that many minor changes may be made in the form and construction of the invene tion without departing from the material principles involved. It is not, therefore, desired to confine the invention to the exact form herein shown and described but it is desired to include all forms which properly come within the scope of the appended claims.

What is claimed, is

1. In apparatus of the class described, a sound controlled circuit including contacts arranged to open by the action of a sound wave and also including a circuit closing relay holding the sound controlled circuit normally closed and a normally open relay adapted to close upon breaking of said circuit, said sound controlled circuit having a shunt controlled by the normally open relay, a power circuit closing relay having its magnets in said shunt, a motor electro-magnetic means for lifting a telephone instrument relative to its stand whereby to permit establishment of a telephone talking circuit, a recording and reproducing instrument driven by said motor and including a sound box for recording and reproducing and a record blank with which said sound box is associated, means actuated by sound waves from the lifted telephone for actuating said sound box, and a power circuit controlled by said relay and having connection with said motor and electro-magnetic means.

2. In apparatus of the class described, a sound controlled circuit including contacts arranged to open by the action of a sound wave and also including a circuit closing relay holding the sound controlled circuit normally closed and a normally open relay adapted to close upon breaking of said circuit, said sound controlled circuit having a shunt controlled by the normally open relay, a power circuit closing relay having its magnets in said shunt, a motor, electro-magnetic means for lifting a telephone instrument relative to its stand whereby to permit establishment or a telephone talking circuit, a recording and reproducing instrument driven by said motor and including a sound pm for recording and reproducing and a record blank with which said sound box is associated, means ac-, tuated by sound waves from the lifted telephone for actuating said sound box, a call answering device operated by said motor and adapted to hit; the telephone instrument associated there- W 3. In apparatus of the class described, a sound controlled circuit including contacts arranged 'to open by the action of a sound wave and also including a circuit closing relay holding the sound controlled circuit normally closed and a normally open relay adapted to close upon breaking of said circuit, said 'sound controlled circuit haw-- ing a shunt controlled by the normally open relay, a power circuit closing relay having its magnets in said shunt, a motor, electro-magnetic means for lifting a telephone'instrument relative to its stand whereby to permit establishment of a' telephone talking circuit,-a recording and reproducing instrument driven by said motor and including a sound box for recording and reproducing and a record blank with which said sound box is associated, means actuated by sound waves from the lifted telephone for actuating said sound box, a powerv circuit controlled by said relay and having connection with said motor and electro-magnetic means, andmeans to restore the sound controlled circuit to normal 11g condition and thereby open the power circuit upon completion of the reception of a message. 4. In apparatus of the classdescribed, a sound controlled circuit including contacts arranged to open by the action of a sound wave and also including a circuit closing relay holding the sound controlled circuit normally closed and a normally open relay adapted to close upon breaking of said circuit, said sound controlled circuit having a shunt controlled by the normally open relay, a power circuit closing relay having its magnets in said shunt, a motor, electro-mag-' netic means for lifting a telephone instrument relative to its stand whereby to permit establishment 01' a telephone talking circuit, a recording and reproducing instrument driven by said motor and including a sound box for recording and reproducing and a record blank with which said sound box is associated, means actuated by sound waves from the lifted telephone for actuating said sound box, a call answering device operated by said motor and adapted to have the telephone instrument associated therewith, and means to restore the sound-controlled circuit to normal condition and thereby open the power circuit upon completion of the reception of a message.

5. In apparatus of the class described, a sound controlled circuit including contacts arranged to open by the action of a sound wave and also including a circuit-closing relay holding the sound controlled circuit normally closed and a normally open relay adapted to close upon breaking of said circuit, said sound controlled circuit having a shunt controlled by the normally open relay, a

power circuit closing relay having its magnet in said shunt, a motor, electro-magnetic means for lifting a telephone instrument relative to its stand whereby to permit establishment of a telephone talking circuit, a recording and reproducing instrument driven by said motor and including a 153 sound box for recording and reproducing and a record blank with which said sound box is associated, means actuated by sound waves from the lifted telephone for actuating said sound box, a power circuit controlled by said relay and having connection with said motor and electro-magnetic means, and means to restore the sound controlled circuit to normal condition and thereby open the power circuit upon completion of the reception of a message, said restoring means including a sound controlled circuit closer influenced to remain open during the reception of a message over the telephone.

6. In apparatus of the class described, a sound controlled circuit including contacts arranged to open by the action of a sound wave and also including a circuit closing relay holding the sound controlled circuit normally closed and a normally open relay adapted to close upon breaking of said circuit, said sound controlled circuit having a shunt controlled by the normally open relay, a power circuit closing relay having its magnets in said shunt, a motor, electro-magnetic means for lifting a telephone instrument relative to its stand whereby to permit establishment of a telephone talking circuit, a recording and reproducing instrument driven by said motor and including a sound box for recording and reproducing and a record blank with which said sound box is associated, means actuated by sound Waves from the lifted telephone for actuating said sound box, a call answering device operated by said motor and adapted to have the telephone instrument associated therewith, and means to restore the sound controlled circuit to normal condition and thereby open the power circuit upon completion of the reception of a message, said restoring means including a sound controlled closer influenced to remain open during the reception of a message over the telephone.

I. In apparatus of the class described, a sound controlled circuit including contacts arranged to open by the action of a sound wave and also including a circuit closing relay holding the sound controlled circuit normally closed and a normally open relay adapted to close upon breaking of said circuit, said sound controlled circuit having a shunt controlled by the normally open relay, a power circuit closing relay having its magnets in said shunt, a motor, an electro-magnetic means for lifting a telephone instrument relative to its stand whereby to permit establishment of a telephone talking circuit, a recording and reproducing instrument driven by said motor and including a sound box for recording and reproducing and a record blank with which said sound box is associated, means actuated by sound waves from the lifted telephone for actuating said sound box, a power circuit controlled by said relay and having connection with said motor and electro-magnetic means, means to restore the sound controlled circuit to normal condition and thereby open the power circuit upon completion of the reception of a message, said restoring means including a sound controlled circuit closer influenced to remain open during the reception of a message over the telephone, and means to retard the closing movement of said last mentioned circuit closer.

8. In apparatus of the class described, a sound controlled circuit including contacts arranged to open by the action of a sound wave and also including a circuit closing relay holding the sound controlled circuit normally closed and a normally open relay adapted to close upon breaking of said circuit, said sound controlled circuit having a shunt controlled by the normally open relay, a power circuit closing relay having its magnets in said shunt, a motor, electro-magnetic means for lifting a telephone instrument relative to its stand whereby to permit establishment of a telephone talking circuit, a recording and reproducing instrument driven by said motor and including a sound box for recording and reproducing and a record blank with which said sound box is associated, means actuated by sound waves from the lifted telephone for actuating said sound box, a call answering device operated by said motor and adapted to have the telephone instrument associated therewith, means to restore 5 the sound controlled circuit to normal condition and thereby open the power circuit upon completion of the reception of a message, said restoring means including a sound controlled closer influenced to remain open during the reception of a message over the telephone, and means to retard the closing movement of said last mentioned circuit closer.

MORRIS KEISER. 

